<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>单飞翼布局</title>
    <style>
        .box {
            background-color: #f00;
            display: flex;
        }
        .box .left {
            width: 230px;
            height: 100vh;
            background-color: #0ff;
            /* 设置不允许缩小 */
            flex-shrink: 0;
        }
        .box .right {
            background-color: #ff0;
            height: 100vh;
            /* 右侧区域设置允许放大，且占据所有剩余空间 */
            flex-grow: 1;
        }
    </style>
</head>
<body>
    <div class="box">
        <div class="left">不放大也不缩小</div>
        <div class="right">会放大会缩小</div>
    </div>
</body>
</html>